Magnetic Domain Texture in Fe <sub>3</sub> O <sub>4</sub> Thin Films on SiO <sub>2</sub> Nanospheres

Topographically complex interfaces offer a promising route to engineer magnetic textures in oxide thin films, with potential implications for next-generation spintronic and neuromorphic devices. Here, Fe<sub>3</sub>O<sub>4</sub> thin films are grown on self-assembled SiO<sub>2</sub> nanospheres to investigate how local curvature, together with polycrystalline morphology, influence magnetic behavior compared to flat films. STEM and GISANS confirm connected growth with preserved lateral ordering, while XMCD-PEEM reveals in-plane magnetic domains that extend across both nanosphere-patterned and flat regions. Despite the low net magnetization of the Fe<sub>3</sub>O<sub>4</sub> caps, their domain orientations align with neighboring flat areas, indicating correlated domain behavior across structurally different regions. These findings demonstrate how nanoscale topography and morphology can be leveraged as design parameters to modulate magnetism in complex oxides.

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Publication Details

Journal
Advanced Materials
Published
2025-10-16
DOI
https://doi.org/10.1002/adma.202513849
Citations
2
Primary Topic
Magnetic properties of thin films
Type
article
Field-Weighted Citation Impact
2.49
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article

Magnetic Domain Texture in Fe 3 O 4 Thin Films on SiO 2 Nanospheres

Chenyang Yin, Nina‐Juliane Steinke, C. Bednarski-Meinke, O. Petracic et al.
2 citations
Advanced Materials
Magnetic properties of thin films
2.49
article

Magnetic Domain Texture in Fe 3 O 4 Thin Films on SiO 2 Nanospheres

Chenyang Yin, Nina‐Juliane Steinke, C. Bednarski-Meinke, O. Petracic, Antonio Massimiliano Mio, Alexander Backs, Hebatalla Elnaggar, Mai Hussein Hamed, Annika Stellhorn, Asma Qdemat, Thomas Saerbeck, Mohamed Zaghloul, Yifan Xu, V.d. Lima
article en
2 citations

Abstract

Topographically complex interfaces offer a promising route to engineer magnetic textures in oxide thin films, with potential implications for next-generation spintronic and neuromorphic devices. Here, Fe<sub>3</sub>O<sub>4</sub> thin films are grown on self-assembled SiO<sub>2</sub> nanospheres to investigate how local curvature, together with polycrystalline morphology, influence magnetic behavior compared to flat films. STEM and GISANS confirm connected growth with preserved lateral ordering, while XMCD-PEEM reveals in-plane magnetic domains that extend across both nanosphere-patterned and flat regions. Despite the low net magnetization of the Fe<sub>3</sub>O<sub>4</sub> caps, their domain orientations align with neighboring flat areas, indicating correlated domain behavior across structurally different regions. These findings demonstrate how nanoscale topography and morphology can be leveraged as design parameters to modulate magnetism in complex oxides.

Advanced MaterialsVol. 38(8)
Centre National de la Recherche Scientifique (FR), Forschungszentrum Jülich (DE), European Spallation Source (SE), Sorbonne Université (FR), Institut Laue-Langevin (FR), Jülich Aachen Research Alliance (DE), Institut de minéralogie, de physique des matériaux et de cosmochimie (FR), Institute for Microelectronics and Microsystems (IT), Heinrich Heine University Düsseldorf (DE), Helwan University (EG), RWTH Aachen University (DE)
Openalex Percentile: Top 10%
Magnetic properties of thin films
2.49
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